Router behind router via wan port

May 6, 2010 at 13:40:20
Specs: Windows 7
hello,
I just started renting the basement of a house as an apartment.
The owner is sharing internet with me, and has provided one jack that I can connect to.
I run a wire to my WRT54GL router WAN port.
I don't know much about networking, but reason I do this instead of doing LAN port is I do not want him to see any of the devices hooked up to my router. I think I will be able to maintain better security like this.
Anyways i seem to be having DNS problems. His router has DHCP with the range of 192.168.1.100 - 199
My router gets assigned 103. His router is set to 254.

I can't seem to connect to any sites. I can connect to sites by IP though so seems like a DNS issue. I have the dns set to his router.
I then tried setting DNS to googles.. 8.8.8.8 And then it worked.. for a bit, then I would lose connection for a period of time, then I would get it back, then lose again etc.
If I have my computer directly connected to the connection he provided me using DHCP it works perfectly fine.

I have tried another router and seem to have the same problem
Anyone have any ideas?
I haven't tried LAN port, but think I may try tonight and do that for now until I can figure it out.
Thanks


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#1
May 6, 2010 at 13:44:53
Your lan subnet must be different that the landlords subnet [wan port subnet] for routing to work.

If you do lan to lan just configure the windows firewall to deny all hosts on the landlords side and you are secure.


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#2
May 6, 2010 at 15:15:49
Your WAN port should get the ip address via DHCP from the landforts router. So ip address, DNS server and default gateway settings are configure automatically at your routers WAN port.

Your router could also be configured to provide ip addresses via DHCP, but you have to change the LAN ip address of the router to e.g. 192.168.0.1 / 255.255.255.0.

The workstation then gets the ip address, DNS server and default gateway from your router via DHCP.
So at your workstation, ipconfig /all should look like this:
ip address: 192.168.0.100
subnet mask: 255.255.255.0
dns server: 192.168.0.1
default gateway: 192.168.0.1

This should work.

The original poster should always write the last response !!!
Let us know, if the problem is solved !!!


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#3
May 6, 2010 at 15:59:08
"Your WAN port should get the ip address via DHCP from the landforts router. So ip address, DNS server and default gateway settings are configure automatically at your routers WAN port."

You don't have to do it this way if you setup static IPs and a Static Rout but it is probably the easiest way the only problem is it is a security risk because you land lord can monitor your Internet Traffic easily but if you only have one public IP to get to the net on then you have no choice. If you had two public IPs then you had other options.


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